feat: Implement new database management and scraping utilities, and update application version to 13.0.0.

check_db.py

@@ -0,0 +1,33 @@
+import sqlite3
+import os
+
+DB_PATH = os.path.join("database", "umamusume.db")
+
+def check_schema():
+    if not os.path.exists(DB_PATH):
+        print(f"Database not found at {DB_PATH}")
+        return
+        
+    conn = sqlite3.connect(DB_PATH)
+    cur = conn.cursor()
+    
+    try:
+        cur.execute("PRAGMA table_info(event_skills)")
+        columns = [row[1] for row in cur.fetchall()]
+        print(f"Columns in event_skills: {columns}")
+        
+        cur.execute("SELECT COUNT(*) FROM event_skills")
+        count = cur.fetchone()[0]
+        print(f"Total skills in event_skills: {count}")
+        
+        cur.execute("SELECT DISTINCT skill_name FROM event_skills WHERE is_gold = 1 LIMIT 5")
+        gold_skills = cur.fetchall()
+        print(f"Golden skills samples: {gold_skills}")
+        
+    except Exception as e:
+        print(f"Error: {e}")
+    finally:
+        conn.close()
+
+if __name__ == "__main__":
+    check_schema()